The Nihonbashi River and Yasukuni-dōri Ave form its eastern and northern boundaries, respectively.
It borders Kanda-Jinbōchō to the east, Gobanchō to the west, Sanbanchō, Hitotsubashi and Yonbanchō to the south, and Kudankita to the north.
This subdistrict is home to a number of office buildings, facilities, and public institutions.
This subdistrict is situated on the westernmost part of Kudanminami, bordering its 3-chōme to the east and Gobanchō to the west.
Chiyoda Board of Education [ja] operates public elementary and junior high schools.